3.11.8 (unstable): Gtk: * Window: Add is_maximized() and the is-maximized property. (Juan R. García Blanco) * IconInfo: Add is_symbolic(). (Juan R. García Blanco) * Assistant: Add use-header-bar property. (Juan R. García Blanco) * ActionBar: - Now inherits from GtkBin - spacing and center-widget properties removed. - Add unset_center_widget() method. (Juan R. García Blanco) * Box: Add get/set_center_widget() and unset_center_widget(). (Juan R. García Blanco) * Dialog: Add get/set_header_bar() and the use_header_bar property. (Juan R. García Blanco) * Entry: - Add the max-width-chars property. - Add get/set_max_width_chars() and the property. (Juan R. García Blanco) * MenuButton: - Add get/set_popover() and unset_popover() and the property. - Add get/set_use_popover() and the property. (Juan R. García Blanco) * Popover: Add constructor that takes a model and add bind_model(). (Juan R. García Blanco)